καὶ δὴ καίand especially, and in particular, and what is more, lays stress on a particular instance or application of a general statement. Here the second καί emphasizes the following word. καὶ δὴ καί is usually attached to a preceding τέ or καί. Thus, καὶ δὴ καὶ τότε πρῳαίτερον συνελέγημενand on that especial occasion we came together somewhat earlier than usual P.Ph. 59d, ἐν ἄλλοις τε πολλοῖς καὶ δὴ καὶ ἐν τοῖς κάμνουσινin the case of many others and particularly in that of the sickX.C. 1.6.21.